/*
* grep: grep pattern
*
* i) pattern POSIX regular expression
*/
void
grep(const char *pattern, char *const *argv, const char *dbpath)
{
FILE *fp;
CONVERT *cv;
GFIND *gp = NULL;
STRBUF *ib = strbuf_open(MAXBUFLEN);
const char *path;
char encoded_pattern[IDENTLEN];
const char *buffer;
int linenum, count;
int flags = 0;
int target = GPATH_SOURCE;
regex_t preg;
int user_specified = 1;
/*
* convert spaces into %FF format.
*/
encode(encoded_pattern, sizeof(encoded_pattern), pattern);
if (oflag)
target = GPATH_BOTH;
if (Oflag)
target = GPATH_OTHER;
if (!Gflag)
flags |= REG_EXTENDED;
if (iflag)
flags |= REG_ICASE;
if (regcomp(&preg, pattern, flags) != 0)
die("invalid regular expression.");
cv = convert_open(type, format, root, cwd, dbpath, stdout);
count = 0;
if (*argv && file_list)
args_open_both(argv, file_list);
else if (*argv)
args_open(argv);
else if (file_list)
args_open_filelist(file_list);
else {
args_open_gfind(gp = gfind_open(dbpath, localprefix, target));
user_specified = 0;
}
while ((path = args_read()) != NULL) {
if (user_specified) {
static char buf[MAXPATHLEN];
if (normalize(path, get_root_with_slash(), cwd, buf, sizeof(buf)) == NULL)
if (!qflag)
fprintf(stderr, "'%s' is out of source tree.\n", path);
if (!test("f", buf))
die("'%s' not found. Please remake tag files by invoking gtags(1).", path);
path = buf;
}
if (!(fp = fopen(path, "r")))
die("cannot open file '%s'.", path);
linenum = 0;
while ((buffer = strbuf_fgets(ib, fp, STRBUF_NOCRLF)) != NULL) {
int result = regexec(&preg, buffer, 0, 0, 0);
linenum++;
if ((!Vflag && result == 0) || (Vflag && result != 0)) {
count++;
if (format == FORMAT_PATH) {
convert_put_path(cv, path);
break;
} else {
convert_put_using(cv, encoded_pattern, path, linenum, buffer,
(user_specified) ? NULL : gp->dbop->lastdat);
}
}
}
fclose(fp);
}
args_close();
convert_close(cv);
strbuf_close(ib);
regfree(&preg);
if (vflag) {
print_count(count);
fprintf(stderr, " (no index used).\n");
}
}
/**
* grep: @NAME{grep} pattern
*
* @param[in] pattern @NAME{POSIX} regular expression
* @param argv
* @param dbpath
*/
void
grep(const char *pattern, char *const *argv, const char *dbpath)
{
FILE *fp;
CONVERT *cv;
GFIND *gp = NULL;
STRBUF *ib = strbuf_open(MAXBUFLEN);
const char *path;
char encoded_pattern[IDENTLEN];
const char *buffer;
int linenum, count;
int flags = 0;
int target = GPATH_SOURCE;
regex_t preg;
int user_specified = 1;
/*
* convert spaces into %FF format.
*/
encode(encoded_pattern, sizeof(encoded_pattern), pattern);
/*
* literal search available?
*/
if (!literal) {
const char *p = pattern;
int normal = 1;
for (; *p; p++) {
if (!(isalpha(*p) || isdigit(*p) || isblank(*p) || *p == '_')) {
normal = 0;
break;
}
}
if (normal)
literal = 1;
}
if (oflag)
target = GPATH_BOTH;
if (Oflag)
target = GPATH_OTHER;
if (literal) {
literal_comple(pattern);
} else {
if (!Gflag)
flags |= REG_EXTENDED;
if (iflag)
flags |= REG_ICASE;
if (regcomp(&preg, pattern, flags) != 0)
die("invalid regular expression.");
}
cv = convert_open(type, format, root, cwd, dbpath, stdout, NOTAGS);
cv->tag_for_display = encoded_pattern;
count = 0;
if (*argv && file_list)
args_open_both(argv, file_list);
else if (*argv)
args_open(argv);
else if (file_list)
args_open_filelist(file_list);
else {
args_open_gfind(gp = gfind_open(dbpath, localprefix, target));
user_specified = 0;
}
while ((path = args_read()) != NULL) {
if (user_specified) {
static char buf[MAXPATHLEN];
if (normalize(path, get_root_with_slash(), cwd, buf, sizeof(buf)) == NULL) {
warning("'%s' is out of the source project.", path);
continue;
}
if (test("d", buf)) {
warning("'%s' is a directory. Ignored.", path);
continue;
}
if (!test("f", buf)) {
warning("'%s' not found. Ignored.", path);
continue;
}
path = buf;
}
if (Sflag && !locatestring(path, localprefix, MATCH_AT_FIRST))
continue;
if (literal) {
int n = literal_search(cv, path);
if (n > 0)
count += n;
} else {
if (!(fp = fopen(path, "r")))
die("cannot open file '%s'.", path);
linenum = 0;
while ((buffer = strbuf_fgets(ib, fp, STRBUF_NOCRLF)) != NULL) {
int result = regexec(&preg, buffer, 0, 0, 0);
linenum++;
if ((!Vflag && result == 0) || (Vflag && result != 0)) {
count++;
if (format == FORMAT_PATH) {
convert_put_path(cv, NULL, path);
break;
} else {
convert_put_using(cv, pattern, path, linenum, buffer,
(user_specified) ? NULL : gp->dbop->lastdat);
}
}
}
fclose(fp);
}
}
args_close();
convert_close(cv);
strbuf_close(ib);
if (literal == 0)
regfree(&preg);
if (vflag) {
print_count(count);
fprintf(stderr, " (no index used).\n");
}
}
